rust-clippy/tests/run-pass/returns.rs

#[deny(warnings)]
fn cfg_return() -> i32 {
    #[cfg(unix)] return 1;
    #[cfg(not(unix))] return 2;
}

#[deny(warnings)]
fn cfg_let_and_return() -> i32 {
    #[cfg(unix)]
    let x = 1;
    #[cfg(not(unix))]
    let x = 2;
    x
}

fn main() {
    cfg_return();
    cfg_let_and_return();
}